Heat Transfer by Conduction through a Cylindrical Wall

Written by Jerry Ratzlaff on . Posted in Thermodynamics

heat conduction cylinder wallHeat Transfer by Conduction through a Cylindrical Wall Formula

\(\large{ Q_c =  \frac { 2\pi kl  \left(  T_1 \;-\; T_2  \right)  }   {  ln   \left(   \frac  {r_2 }  { r_1 } \right)     }   }\)         

Where:

\(\large{ Q_c }\) = heat transfer by conduction

\(\large{ l }\) = length of the material

\(\large{ ln }\) = natural logarithm

\(\large{ \pi }\) = Pi

\(\large{ r_1 }\) = radius to inside wall

\(\large{ r_2 }\) = radius to outside wall

\(\large{ T_1 }\) = temperature of one surface of the wall

\(\large{ T_2 }\) = temperature of the other surface of the wall

\(\large{ k }\) = thermal conductivity

 

Tags: Equations for Heat Transfer Equations for Heat